It is intended for increase of level of calling pressure on coupled with switcher telephone lines. Provides working capacity of any telephone sets. The improved execution.
The adapter is similar on the device to adapter SPAD-1, but has bigger scope of target pressure that allows to force to "begin to sound" even "the hardest" devices. Adapter SPAD-2 also has elimination function hindrances - especially actually for devices, which hindrance on the coupled line even without an entering call.
The basic characteristics:
The pressure of a call formed by the adapter of rem. 80-120 V
The inclusion threshold is
Current of consumption from a telephone line 0
Execution a plug, the socket, an adapter
Polarity of connection it is not important
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